5x - 7 = 18
4x + 5 = 45
x + 4 = 10
2x + 3 = 11
3x - 2 = 1
x=6
x=1
x=4
x=10
x=5
x - 3 = 7
2x - 4 = 10
3x + 2 = 11
6x + 4 = 16
x=3
x=2
x=7
